variable_name.py

def solution(name):
    return name.isidentifier()




print(solution('var_1__Int'))
# Expected Output: true

print(solution('variable0'))
# Expected Output: true

print(solution('2w2'))
# Expected Output: false



# Correct variable names consist only of English letters,
# digits and underscores and they can't start with a digit.

# Check if the given string is a correct variable name.

# Example

    # For name = "var_1__Int", the output should be
    # solution(name) = true;
    # For name = "qq-q", the output should be
    # solution(name) = false;
    # For name = "2w2", the output should be
    # solution(name) = false.

# Input/Output

    # [execution time limit] 4 seconds (py3)

    # [input] string name

    # Guaranteed constraints:
    # 1 ≤ name.length ≤ 10.

    # [output] boolean

    # true if name is a correct variable name, false otherwise.